📄 xmlwriter.java
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if ((ns != null) && (ns != Namespace.NO_NAMESPACE)
&& (ns != Namespace.XML_NAMESPACE)) {
String prefix = ns.getPrefix();
String uri = namespaceStack.getURI(prefix);
if (!ns.getURI().equals(uri)) {
writeNamespace(ns);
namespaceStack.push(ns);
}
}
// If the attribute is a namespace declaration, check if we have
// already written that declaration elsewhere (if that's the case,
// it must be in the namespace stack
String attName = attribute.getName();
if (attName.startsWith("xmlns:")) {
String prefix = attName.substring(6);
if (namespaceStack.getNamespaceForPrefix(prefix) == null) {
String uri = attribute.getValue();
namespaceStack.push(prefix, uri);
writeNamespace(prefix, uri);
}
} else if (attName.equals("xmlns")) {
if (namespaceStack.getDefaultNamespace() == null) {
String uri = attribute.getValue();
namespaceStack.push(null, uri);
writeNamespace(null, uri);
}
} else {
char quote = format.getAttributeQuoteCharacter();
writer.write(" ");
writer.write(attribute.getQualifiedName());
writer.write("=");
writer.write(quote);
writeEscapeAttributeEntities(attribute.getValue());
writer.write(quote);
}
}
}
protected void writeAttribute(Attribute attribute) throws IOException {
writer.write(" ");
writer.write(attribute.getQualifiedName());
writer.write("=");
char quote = format.getAttributeQuoteCharacter();
writer.write(quote);
writeEscapeAttributeEntities(attribute.getValue());
writer.write(quote);
lastOutputNodeType = Node.ATTRIBUTE_NODE;
}
protected void writeAttributes(Attributes attributes) throws IOException {
for (int i = 0, size = attributes.getLength(); i < size; i++) {
writeAttribute(attributes, i);
}
}
protected void writeAttribute(Attributes attributes, int index)
throws IOException {
char quote = format.getAttributeQuoteCharacter();
writer.write(" ");
writer.write(attributes.getQName(index));
writer.write("=");
writer.write(quote);
writeEscapeAttributeEntities(attributes.getValue(index));
writer.write(quote);
}
protected void indent() throws IOException {
String indent = format.getIndent();
if ((indent != null) && (indent.length() > 0)) {
for (int i = 0; i < indentLevel; i++) {
writer.write(indent);
}
}
}
/**
* <p>
* This will print a new line only if the newlines flag was set to true
* </p>
*
* @throws IOException
* DOCUMENT ME!
*/
protected void writePrintln() throws IOException {
if (format.isNewlines()) {
String seperator = format.getLineSeparator();
if (lastChar != seperator.charAt(seperator.length() - 1)) {
writer.write(format.getLineSeparator());
}
}
}
/**
* Get an OutputStreamWriter, use preferred encoding.
*
* @param outStream
* DOCUMENT ME!
* @param encoding
* DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws UnsupportedEncodingException
* DOCUMENT ME!
*/
protected Writer createWriter(OutputStream outStream, String encoding)
throws UnsupportedEncodingException {
return new BufferedWriter(new OutputStreamWriter(outStream, encoding));
}
/**
* <p>
* This will write the declaration to the given Writer. Assumes XML version
* 1.0 since we don't directly know.
* </p>
*
* @throws IOException
* DOCUMENT ME!
*/
protected void writeDeclaration() throws IOException {
String encoding = format.getEncoding();
// Only print of declaration is not suppressed
if (!format.isSuppressDeclaration()) {
// Assume 1.0 version
if (encoding.equals("UTF8")) {
writer.write("<?xml version=\"1.0\"");
if (!format.isOmitEncoding()) {
writer.write(" encoding=\"UTF-8\"");
}
writer.write("?>");
} else {
writer.write("<?xml version=\"1.0\"");
if (!format.isOmitEncoding()) {
writer.write(" encoding=\"" + encoding + "\"");
}
writer.write("?>");
}
if (format.isNewLineAfterDeclaration()) {
println();
}
}
}
protected void writeClose(String qualifiedName) throws IOException {
writer.write("</");
writer.write(qualifiedName);
writer.write(">");
}
protected void writeEmptyElementClose(String qualifiedName)
throws IOException {
// Simply close up
if (!format.isExpandEmptyElements()) {
writer.write("/>");
} else {
writer.write("></");
writer.write(qualifiedName);
writer.write(">");
}
}
protected boolean isExpandEmptyElements() {
return format.isExpandEmptyElements();
}
/**
* This will take the pre-defined entities in XML 1.0 and convert their
* character representation to the appropriate entity reference, suitable
* for XML attributes.
*
* @param text
* DOCUMENT ME!
*
* @return DOCUMENT ME!
*/
protected String escapeElementEntities(String text) {
char[] block = null;
int i;
int last = 0;
int size = text.length();
for (i = 0; i < size; i++) {
String entity = null;
char c = text.charAt(i);
switch (c) {
case '<':
entity = "<";
break;
case '>':
entity = ">";
break;
case '&':
entity = "&";
break;
case '\t':
case '\n':
case '\r':
// don't encode standard whitespace characters
if (preserve) {
entity = String.valueOf(c);
}
break;
default:
if ((c < 32) || shouldEncodeChar(c)) {
entity = "&#" + (int) c + ";";
}
break;
}
if (entity != null) {
if (block == null) {
block = text.toCharArray();
}
buffer.append(block, last, i - last);
buffer.append(entity);
last = i + 1;
}
}
if (last == 0) {
return text;
}
if (last < size) {
if (block == null) {
block = text.toCharArray();
}
buffer.append(block, last, i - last);
}
String answer = buffer.toString();
buffer.setLength(0);
return answer;
}
protected void writeEscapeAttributeEntities(String txt) throws IOException {
if (txt != null) {
String escapedText = escapeAttributeEntities(txt);
writer.write(escapedText);
}
}
/**
* This will take the pre-defined entities in XML 1.0 and convert their
* character representation to the appropriate entity reference, suitable
* for XML attributes.
*
* @param text
* DOCUMENT ME!
*
* @return DOCUMENT ME!
*/
protected String escapeAttributeEntities(String text) {
char quote = format.getAttributeQuoteCharacter();
char[] block = null;
int i;
int last = 0;
int size = text.length();
for (i = 0; i < size; i++) {
String entity = null;
char c = text.charAt(i);
switch (c) {
case '<':
entity = "<";
break;
case '>':
entity = ">";
break;
case '\'':
if (quote == '\'') {
entity = "'";
}
break;
case '\"':
if (quote == '\"') {
entity = """;
}
break;
case '&':
entity = "&";
break;
case '\t':
case '\n':
case '\r':
// don't encode standard whitespace characters
break;
default:
if ((c < 32) || shouldEncodeChar(c)) {
entity = "&#" + (int) c + ";";
}
break;
}
if (entity != null) {
if (block == null) {
block = text.toCharArray();
}
buffer.append(block, last, i - last);
buffer.append(entity);
last = i + 1;
}
}
if (last == 0) {
return text;
}
if (last < size) {
if (block == null) {
block = text.toCharArray();
}
buffer.append(block, last, i - last);
}
String answer = buffer.toString();
buffer.setLength(0);
return answer;
}
/**
* Should the given character be escaped. This depends on the encoding of
* the document.
*
* @param c
* DOCUMENT ME!
*
* @return boolean
*/
protected boolean shouldEncodeChar(char c) {
int max = getMaximumAllowedCharacter();
return (max > 0) && (c > max);
}
/**
* Returns the maximum allowed character code that should be allowed
* unescaped which defaults to 127 in US-ASCII (7 bit) or 255 in ISO- (8
* bit).
*
* @return DOCUMENT ME!
*/
protected int defaultMaximumAllowedCharacter() {
String encoding = format.getEncoding();
if (encoding != null) {
if (encoding.equals("US-ASCII")) {
return 127;
}
}
// no encoding for things like ISO-*, UTF-8 or UTF-16
return -1;
}
protected boolean isNamespaceDeclaration(Namespace ns) {
if ((ns != null) && (ns != Namespace.XML_NAMESPACE)) {
String uri = ns.getURI();
if (uri != null) {
if (!namespaceStack.contains(ns)) {
return true;
}
}
}
return false;
}
protected void handleException(IOException e) throws SAXException {
throw new SAXException(e);
}
// Laramie Crocker 4/8/2002 10:38AM
/**
* Lets subclasses get at the current format object, so they can call
* setTrimText, setNewLines, etc. Put in to support the HTMLWriter, in the
* way that it pushes the current newline/trim state onto a stack and
* overrides the state within preformatted tags.
*
* @return DOCUMENT ME!
*/
protected OutputFormat getOutputFormat() {
return format;
}
public boolean resolveEntityRefs() {
return resolveEntityRefs;
}
public void setResolveEntityRefs(boolean resolve) {
this.resolveEntityRefs = resolve;
}
}
/*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain copyright statements and
* notices. Redistributions must also contain a copy of this document.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name "DOM4J" must not be used to endorse or promote products derived
* from this Software without prior written permission of MetaStuff, Ltd. For
* written permission, please contact dom4j-info@metastuff.com.
*
* 4. Products derived from this Software may not be called "DOM4J" nor may
* "DOM4J" appear in their names without prior written permission of MetaStuff,
* Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
*
* 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
*
* THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
*/
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